RESTful API 这玩意不用多说了,用Go做了个很简单的例子:
服务端在被调用时返回JSON,
客户端解析得到相关JSON信息.
服务端源码:
package main //简单的JSON Restful API演示(服务端) //author: Xiong Chuan Liang //date: 2015-2-28 import ( "encoding/json" "fmt" "net/http" "time" ) type Item struct { Seq int Result map[string]int } type Message struct { Dept string Subject string Time int64 Detail []Item } func getJson() ([]byte, error) { pass := make(map[string]int) pass["x"] = 50 pass["c"] = 60 item1 := Item{100, pass} reject := make(map[string]int) reject["l"] = 11 reject["d"] = 20 item2 := Item{200, reject} detail := []Item{item1, item2} m := Message{"IT", "KPI", time.Now().Unix(), detail} return json.MarshalIndent(m, "", "") } func handler(w http.ResponseWriter, r *http.Request) { resp, err := getJson() if err != nil { panic(err) } fmt.Fprintf(w, string(resp)) } func main() { http.HandleFunc("/", handler) http.ListenAndServe("localhost:8085", nil) }服务端源码运行后,可在浏览器中执行看下效果:
说明返回是正常的。再用Go写个调用程序测试下:
package main //简单的JSON Restful API演示(调用端) //author: Xiong Chuan Liang //date: 2015-2-28 import ( "encoding/json" "fmt" "io/ioutil" "net/http" "time" ) type Item struct { Seq int Result map[string]int } type Message struct { Dept string Subject string Time int64 Detail []Item } func main() { url := "http://localhost:8085" ret, err := http.Get(url) if err != nil { panic(err) } defer ret.Body.Close() body, err := ioutil.ReadAll(ret.Body) if err != nil { panic(err) } var msg Message err = json.Unmarshal(body, &msg) if err != nil { panic(err) } strTime := time.Unix(msg.Time, 0).Format("2006-01-02 15:04:05") fmt.Println("Dept:", msg.Dept) fmt.Println("Subject:", msg.Subject) fmt.Println("Time:", strTime, "\n", msg.Detail) } /* //运行结果: Dept: IT Subject: KPI Time: 2015-02-28 16:43:11 [{100 map[c:60 x:50]} {200 map[d:20 l:11]}] */从运行结果中可以看到,已正确得到相关JSON信息。
MAIL: xcl_168@aliyun.com
BLOG: http://blog.csdn.net/xcl168
有疑问加站长微信联系(非本文作者)